Nut wrench



FIG. 1 is a front perspective view of a nut wrench showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof; the bottom plan view being a mirror image thereof; and,

FIG. 5 is a left side elevational view thereof; the right side elevational view being a mirror image thereof. 

The ornamental design for a nut wrench, as shown and described. 